鄂托克前旗区域自动站小时气温数据质量控制

通过缺测检查、气候学界限值检查、台站极值检查、内部一致性检查、小时变率检查、温度连续时次的检查、空间一致性检查等质量控制方法对鄂托克前旗2006年以来投入使用的15个区域自动站连续时次气温数据进行了质量评估。结果表明:数据正确率达到90%以上的区域自动站占全部区域自动站的67.9%,达到60%~90%及小于60%的区域自动站分别占16%及16.1%。15个区域自动站2012年年平均野值率为2.6%,2013年为2.0%,其余年份为0。各区域自动站数据缺测率最低为0,最高为100%(全年无数据文件或全年数据缺测)。对各区域自动站的比较表明,华云站数据相对较长春站数据稳定,缺测率少。随着维修维护技术不断进步,各区域自动站资料质量总体呈逐步提高趋势。

Quality Control of Hourly Temperature Data of Regional Automatic Weather Station in Etuokeqianqi

Using methods of quality control such as climatic limits check,station extreme check,internal consistency check,hourly temperature variability check,temperature consistency check and space consistency check,quality of continuous hourly temperature data of 15 regional automatic weather stations in Etuokeqianqi which have been put into use since 2006 is assessed. The results showed that the accurate rate was above 90%,between 60% to 90%,below 60% in 67.9%,16%,16.1% of all the regional automatic weather stations,respectively. The wild value rate of 15 regional automatic weather stations was 2.6% in 2012,2.0% in 2013 and 0 in other years. The missing rate ranges from 0 to 100%(representing no annual data files or annual data missing respectively). Comparison among all regional automatic weather stations shows that the data of Huayun stations is more stable than that of Changchun stations,and the missing rate of the former is less than that of the latter. The quality of all the regional automatic weather stations has been improving with the repair and maintenance technology progressing.